CVE-2020-5137: Buffer Overflow
First published: Mon Oct 12 2020(Updated: )
A buffer overflow vulnerability in SonicOS allows a remote unauthenticated attacker to cause Denial of Service (DoS) on the firewall SSLVPN service and leads to firewall crash. This vulnerability affected SonicOS Gen 5 version 5.9.1.7, 5.9.1.13, Gen 6 version 6.5.4.7, 6.5.1.12, 6.0.5.3, SonicOSv 6.5.4.v and Gen 7 version 7.0.0.0.
Credit: PSIRT@sonicwall.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| SonicWall SonicOS | <=5.9.1.13 | |
| SonicWall SonicOS | >=6.0.0.0<=6.0.5.3 | |
| SonicWall SonicOS | >=6.5.0.0<=6.5.1.11 | |
| SonicWall SonicOS | >=6.5.4.0<=6.5.4.7 | |
| SonicWall SonicOS | =7.0.0.0 | |
| Sonicwall Sonicosv | <=6.5.4.4 |
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Frequently Asked Questions
What is CVE-2020-5137?
CVE-2020-5137 is a buffer overflow vulnerability in SonicOS that allows a remote unauthenticated attacker to cause Denial of Service (DoS) on the firewall SSLVPN service and leads to firewall crash.
Which versions of SonicOS are affected by CVE-2020-5137?
SonicOS Gen 5 version 5.9.1.7, 5.9.1.13, Gen 6 version 6.5.4.7, 6.5.1.12, 6.0.5.3, SonicOSv 6.5, and SonicOS 7.0.0.0 are affected by CVE-2020-5137.
What is the severity level of CVE-2020-5137?
CVE-2020-5137 has a severity level of 7.5 (high).
How can I fix CVE-2020-5137?
To fix CVE-2020-5137, it is recommended to update SonicOS to a patched version provided by SonicWall.
Where can I find more information about CVE-2020-5137?
You can find more information about CVE-2020-5137 on the SonicWall PSIRT website at https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2020-0012.
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- agent/severity
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- version/sonicwall sonicos/6.0.0.0
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- version/sonicwall sonicos/6.5.0.0
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- version/sonicwall sonicos/6.5.4.0
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- version/sonicwall sonicos/7.0.0.0
- canonical/sonicwall sonicosv
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